Dr Oh Chia Chiang Derrick is an orthopaedic surgeon practising at Mount Elizabeth Hospital and Gleneagles Hospital, Singapore. He has dual subspecialty training in sports and trauma surgery, with expertise in arthroscopic procedures for the knee and shoulder. Dr Oh commonly performs ACL reconstruction, meniscus repair, rotator cuff surgery, Bankart repair, cartilage regeneration, and joint replacement using computer navigation. A graduate of the National University of Singapore, he previously served as a consultant at Tan Tock Seng Hospital. He is also active in medical education and has taught at arthroscopy workshops and clinical training sessions.